Home / 40,861.16-61,172.76-30,377.60

Finding the Fourth Proportional to 40,861.16, 61,172.76 and 30,377.60

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Solution

The fourth proportional to 40,861.16, 61,172.76 and 30,377.60 is: 45,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,861.16 : 61,172.76 = 30,377.60 : x
  2. Step 2: Convert to fraction form
    40,861.16/61,172.76 = 30,377.60/x
  3. Step 3: Cross multiply
    40,861.16x = 61,172.76 × 30,377.60
  4. Step 4: Simplify right side
    40,861.16x = 1,858,281,634.18
  5. Step 5: Solve for x
    x = 1,858,281,634.18/40,861.16
  6. Step 6: Final answer
    x = 45,477.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.